Wood fires will be banned in the Bay Area on Tuesday as a result of a Spare the Air alert issued for the third consecutive day.

A prolonged spell of cold stagnant air is trapping pollutants near the ground, spurring the Bay Area Air Quality Management District to issue its seventh Spare the Air alert of the cold season.

During alerts, the pollution district bans wood and other solid fuel fires in fireplaces, fire inserts, stoves or outdoor fire pits.

The district regulates air pollution in seven Bay Area counties and southern parts of Solano and Sonoma counties.

Contact Denis Cuff at 925-943-8267. Follow him at Twitter.com/deniscuff